Spindle bolster and step



(No Model.) I v G. G. BUTTRIGK. SPINDLE BOLSTER AND STEP.

No. 490,337. Patented Jan. 24,1893.

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UNITED STATES PATENT @FFlCE.

CHARLES G. BUTTRIOK, OF HOLYOKE, MASSACHUSETTS.

SPINDLE BOLSTER AND STEP.

SPECIFICATION forming part of Letters Patent No. 490,337, dated January24, 1893.

Application filed May 19, 1892.

To all whom, it Ina/y concern:

Be it known that 1, CHARLES G. BUTTBICK, a citizen of the United States,residing at Holyoke,in the county of Hampden and State of Massachusetts,have invented new and useful Improvements in Spindle Bolsters and Steps,of which the following is a specification.

This invention relates to bolsters and steps for the spindles ofspinning machines and cooperating devices, the object being to improvethe construction of the same, and the invention consists in the peculiarconstruction and arrangement of said parts and de vices, all ashereinafter fully set forth, and more particularly pointed out in theclaims.

In the drawings forming part of the speci fication, Figure 1 is alongitudinal sectional view of a bolster and spindlestep case, havin gapplied thereto a bolster and a step embodying my improvements, whichare shown in side elevation, this figure showing also the whirl-portionof a spindle, in section and applied to the upper end of the bolster, abobbin on said spindle, a spring on said step, and the lower end of thespindle in dotted lines, within said bolster and step. This figureillustrates the position of the bolster and the spindle-step whenoccupying operative positions in the case. Fig. 2 shows, likewise, saidspindle-case in longitudinal section, the bolster and the step in sideelevati0n,the latter being shown within said case, and the bolster isthere shown as being screwed into the case. A spring is shown in thisfigure, on the lower end of the spindle-step. Figs. 3 and 4 areperspective views of the bolster and the spindle-step separate fromtheir case. In the drawings A indicates the bolster and spindle-stepcase which is provided on its outside with a screw-thread, 2, to receivea nut (not shown in the drawings) whereby the case is-firrnly secured tothe rail of a spinningframe in a well known manner, and said case ischambered, as is usually practiced, to receive in its lower end thespindle step and its upper end is internally screw-threaded to arrangefor receiving the screw-threaded lower end of the spindlebolster. Thelower end 3,

of a chamber within the said case, A, is bored to a suitable diameter toreceive the lower end of the spindle-step, as shown, and above thislower end, 3, of said chamber the latter Fig. 2.

Serial No. 433,546. (No model.)

' is made of an enlarged diameter, whereby is formed a concentricshoulder, 4, around the inner wall of said chamber and from saidshoulder to the upper end of the case, A, the chamber therein is ofsubstantially uniform diameter.

The spindle-step, ]3,is made substantially of the form shown, that is tosay its lower end freely enters the lower end, 3, of the said chamber inthe case, A, and has an oil-hole, 5, a short distance above its lowerend. Said step is of an enlarged diameter from a short distance abovesaid oil-hole to a shoulder, 6, thereon, and above said shoulder thediameter of said step is slightly less than that of the interior of thecase, A, as shown. That portion, D, of the spindle-step, B, whichextends from said shoulder, 6, to its upper end, is bored from thelatter point inwardly to form a socket to receive the lower end, 8, ofthe bolster, E, as shown in Figs. 1 and 2, and in the side of saidsocket is formed'a slot, 9, in the line of its axis, and a slot, oropening 10, at right angles to said slot, 9, with which the lattercommunicates. The said lower end, 8, of the bolster has a slightlyprojecting pin, 12,1ixed in its side. Thus a species of bayonet-joint isformed for interlocking the adjoining ends of said bolster and step, asshown in Fig. 1. The said enlarged portion, D, of the spindle-step maybe made integral therewith or be made by fixing a tube to the upper endof the step and forming the slots, 9 and 10, therein, as described.

The step-socket to receive the lower end of the spindle is indicated at7, in Fig. 4.

'In Fig. 1, the whirl-hub, 13, is shown chambered in the usual manner tofit over the up per end of the bolster, E, and a portion of the spindle,14, is there shown entering said bolster. The normal relative positionsof the upper end of said bolster and the upper end of said chamberareshown in said last named figure. Said bolster is provided with the usualoil-hole, 0a.

A coil spring, 72-, of such internal diameter as will cause it toslightly grasp the step, is placed in the case, A, and there rests uponthe shoulder, 4. The spindle-step then being placed in the case in theposition shown in the upper end of said spring, and the latter Itsshoulder, 6, comes to a bearing on there holds it temporarily in asomewhat.

higher position than its operative one, as shown in Fig. 1. The bolster,E, is then placed in the upper end of the case, A, and

5 upon giving it a turn or two to screw it into said case, the pin, 12,is brought against the upper end of the part, D, of the step, 13, as inFig. 2, the spring, 72., yieldingly supporting the step. Upon continuingto turn the bolster in the case, it moves in the direction of the arrow,0, in said last named figure, and crowds the pin, 12, against the upperedge of said part, D, while the bolster turns in the direction of thearrow, '0.

force of the spring h, and compressing the latter, brings the pin, 12,opposite the slot, 9,

and by the reaction of said spring, the step is then lifted up and anengagement of said pin and slot, 9, is effected. Continuing to screwdown the bolster the stepis turned by it, first, I

slightly, during a momentary engagement of said pin with one edge of theslot, 9, then,

having emerged from the latter into the opening, 10, the pin, 12,engages with one edge of said opening and the upper end of the steppart,D, and the shoulder at the lower end of,

the screw-thread on the bolster meet, as shown 0 in Fig. 1, and both thestep and bolster are turned until the latter shallbe screwed quite downand, with the step, be brought to operative positions as shown in saidlast named figure. In moving the step downward from 5 the position shownin Fig. 2 to that shown in Fig. 1, the spring, h, becomes compressed tosuch degree that it ,constitutes a resistance exceeding the normalweight of the spindle and a loaded bobbin, and therefore holds the stepin the position shown.

Fro gthenforegoing descriptionb'f the m- "str'uction and operation ofthe bolster and step in placing them in the case, A, it will be clearlyunderstood that they become thereby 45 automatically interlocked and soremain while in the case. Said interlocking feature About one turn of 15the bolster, the latter moving inward and V crowding the step, B,downward against the n...3.In--eom'binationjaspindle-step obvious, byunscrewing the bolster, and in this operation the pin, 12, is carried tothe opposite edge of the opening, 10, to that at which it is shown inFig. 1, and as the bolster moves upward out of the case, said pinbecomes engaged under a part of the upper end of the step at the rightof the slot, 9, so that the bolster, the step, and the spring, 71., areall drawn out together. Said parts may, obviously, be all connected, asdescribed, and placed simultaneously in the case, A, but should they beplaced therein one by one, in the order described, they will becomeautomatically connected for removal,as described.

What I claim as my invention, is:

1. Means for effecting the automatic interlocking of a spindle-bolsterand step, consisting of a spring acting to move the step toward thebolster, a step having a socket in its upper end to receive thelower endof the bolster, and interlocking devices, substan: tially as described,at the meeting ends or said bolster and step, combined with the bolster, and a case, substantially as described, to receive saidbolster,step, and spring, substantially as set forth.

2. In combination, a step and bolster case having a shoulder around itsinner Wall, a coil spring resting by its lower end on said shoulder, aspindle step having a shoulder under which said spring en gageaand asocket in its upper end in the side of which is a slot and an opening,substantially as described, a spindle-bolster screwing into said casewhose lower end enters said socket, and having thereon a projecting pinfor engagement with the borders of said slot and opening whereby thestep and bolster are interlocked, substantially as set fgi th.

having a socket in its upper end in the side of which is a slot and anopening substantially as described, and a spindle bolster whose lowerend enters said socket having thereon a projecting pin for engagementwith the borders of said slot and opening, substantially as set forth.

CHARLES G. BUTTRICK.

\Vitn esses:

H. A. CHAPIN, K. IE'CLEMONS.

